Ara es mostren els items 5431-5450 de 84318

  • An Empirical equation to estimate mineral dust concentrations from visibility observations in Northern Africa 

    Camino, C; Cuevas, Emilio; Basart, Sara; Alonso Perez, Silvia; Baldasano Recio, José María; Terradellas, E.; Marticorena, B; Berjon, A; Rodriguez, S (2015-03-01)
    Article
    Accés restringit per política de l'editorial
    This paper presents a new empirical equation relating horizontal visibility and PM10 dust concentrations. The new empirical equation (IZO-Eq) is derived from observations performed at the Izana Atmospheric Observatory (IZO, ...
  • An empirical evaluation of five small area estimators 

    Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2003)
    Article
    Accés obert
    This paper compares five small area estimators. We use Monte Carlo simulation in the context of both artificial and real populations. In addition to the direct and indirect estimators, we consider the optimal composite ...
  • An empirical evaluation of High-Level Synthesis languages and tools for database acceleration 

    Arcas Abella, Oriol; Ndu, Geoffrey; Sonmez, N.; Ghasempour, Mohsen; Armejach, Adrià; Navaridas, Javier; Song, Wei; Mawer, John; Cristal Kestelman, Adrián; Lujan, Mikel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
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    High Level Synthesis (HLS) languages and tools are emerging as the most promising technique to make FPGAs more accessible to software developers. Nevertheless, picking the most suitable HLS for a certain class of algorithms ...
  • An empirical evaluation roadmap for iStar 2.0 

    López Cuesta, Lidia; Aydemir, Fatma Basak; Dalpiaz, Fabiano; Horkoff, Jennifer (2016)
    Text en actes de congrés
    Accés obert
    The iStar 2.0 modeling language is the result of a two-year community effort intended at providing a solid, unified basis for teaching and conducting research with i*. The language was released with important qualities in ...
  • An empirical investigation into the changing visual identity of full service and low cost carriers, 2000 vs. 2012 

    Taylor, Adam; Pitfield, David E.; Budd, Lucy (Escola Tècnica Superior d'Enginyeries Industrial i Aeronàutica de Terrassa. Universitat Politècnica de Catalunya, 2013-12)
    Article
    Accés obert
    Purpose: This paper reports on the findings of an analysis of the visual branding of over 630 airline tail fins as they appeared in 2000 and 2012. Design/methodology: Unlike existing studies of airlines’ visual identities ...
  • An empirical methodology for prediction of shape and flow rate of a free-falling non-submerged liquid and casting iron stream 

    Gámez Montero, Pedro Javier; Castilla López, Roberto; Freire Venegas, Francisco Javier; Khamashta Llorens, Maria; Codina Macià, Esteban (2016-09-19)
    Article
    Accés obert
    The work presented in this article demonstrates the use of an empirical and simplified approach based on an optical technique and a home-made ad hoc code that give knowledge of the shape and falling velocity of a free-falling ...
  • An empirical overview of the No Free Lunch Theorem and its effect on Real-World Machine Learning Classification 

    Gomez Guillen, David; Rojas Espinosa, Alfonso (2016-01-01)
    Article
    Accés obert
    A sizable amount of research has been done to improve the mechanisms for knowledge extraction such as machine learning classification or regression. Quite unintuitively, the no free lunch (NFL) theorem states that all ...
  • An empirical study about catering theory of dividends: The proof from Chinese stock market 

    Lu, Xiaoguang; Xi, Yiran; Lu, Diqian (OmniaScience, 2014-05)
    Article
    Accés obert
    Purpose: This paper aims to study the remarkable effect of dividends catering in Chinese stock market, and its significance on dividend policy and investment decisions. Is there a significant difference in operation status ...
  • An empirical study of effective capacity throughputs in 802.11 wireless networks 

    Davy, Alan; Meskill, Brian; Domingo Pascual, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Text en actes de congrés
    Accés obert
    Current literature defines the effective capacity of a wireless link as the maximum throughput that can be supported while meeting specific Quality of Service targets on packet delay. This metric can be harnessed for a ...
  • An empirical study of semi-supervised structured conditional models for dependency parsing 

    Suzuki, Jun; Isozaki, Hideki; Carreras Pérez, Xavier; Collins, Michael (2009)
    Text en actes de congrés
    Accés obert
    This paper describes an empirical study of high-performance dependency parsers based on a semi-supervised learning approach. We describe an extension of semisupervised structured conditional models (SS-SCMs) to the dependency ...
  • An empirical study on project management of reconstruction after disaster based on interpretation system 

    Zhou, Jun; Wang, Hanzhao (OmniaScience, 2015-12)
    Article
    Accés obert
    Purpose: Recently natural disasters frequently occur all over the world. However, the stakeholder management of post-disaster reconstruction is often a neglected field because of its particularity. This study investigates ...
  • An empirical study to validate the use of ontological guidelines in the creation of i* models 

    Gomes, Ramilton Costa; Guizzardi, Renata Silva Sousa; Franch Gutiérrez, Javier; Guizzardi, Giancarlo; Wieringa, Roel (CEUR-WS.org, 2015)
    Text en actes de congrés
    Accés obert
    i* is a well known goal modeling framework, developed by a large and geographically dispersed research community. Currently, i* users tend to ascribe different and conflicting meanings to its constructs, leading to a non­ ...
  • An emulator framework for a new radio resource management for QoS guaranteed services in W-CDMA 

    Sallent Roig, José Oriol; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10)
    Article
    Accés obert
    In the context of third-generation (3G) systems a mix of services with different requirements are expected. Consequently, packet scheduling mechanisms for quality of service (QoS) guarantees will play a key role. This paper ...
  • An energy efficient protocol architecture for m-Health systems 

    Tennina, Stefano; Kartsakli, Elli; Graziosi, Fabio; Santos, Manuel; Lalos, Aristeidis; Antonopoulos, Angelos; Mekikis, Prodromos Vasileios; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Contemporary technologies as implemented in the field of health care have provided the everyday clinical practice with a plethora of tools to be used in various settings. However, from all established and emerging applications, ...
  • An energy efficient vertical handover decision algorithm 

    Pons, Xavier (2015-03-26)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    As wireless communications evolve towards heterogeneous networks, mobile terminals have been enabled to handover seamlessly from one network to another. At the same time, the continuous increase in the terminal power ...
  • An energy flow study of a double-deck tunnel under quasi-static and harmonic excitations 

    Clot Razquin, Arnau; Romeu Garbí, Jordi; Arcos Villamarín, Robert (2016-10)
    Article
    Accés restringit per política de l'editorial
    This paper presents a comparison between the vibration energy flow radiated by a double-deck tunnel and the one radiated by a simple tunnel when both are excited by constant or by harmonic moving loads. For both cases, the ...
  • An energy management strategy for plug-in hybrid electric vehicles 

    Bader, Benjamin (Universitat Politècnica de Catalunya, 2013-11-29)
    Tesi
    Accés obert
    This dissertation formulates a proposal for a real time implementable energy management strategy (EMS) for plug-in hybrid electric vehicles. The EMS is developed to minimize vehicle fuel consumption through the utilisation ...
  • An energy model for the acoustic insulation of absorbing materials 

    Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
    Text en actes de congrés
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    In this work an energy model for the acoustic insulation of absorbing ma- terials is shown. This model is an extension of Statistical Energy Analysis (SEA) [1] in order to account for the effect of non-conservative ...
  • An energy-efficient and scalable eDRAM-based register file architecture for GPGPU 

    Jing, Naifeng; Shen, Yao; Lu, Yao; Ganapathy, Shrikanth; Mao, Zhigang; Guo, Minyi; Canal Corretger, Ramon; Liang, Xiaoyao (ACM, 2013)
    Text en actes de congrés
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    The heavily-threaded data processing demands of streaming multiprocessors (SM) in a GPGPU require a large register file (RF). The fast increasing size of the RF makes the area cost and power consumption unaffordable for ...
  • An energy-efficient memory unit for clustered microarchitectures 

    Bieschewski, Stefan; Parcerisa Bundó, Joan Manuel; González Colás, Antonio María (2016-08-01)
    Article
    Accés obert
    Whereas clustered microarchitectures themselves have been extensively studied, the memory units for these clustered microarchitectures have received relatively little attention. This article discusses some of the inherent ...